Finding the Third Proportional to 721,480 and 1,142,383

Step by Step Solution

1. Step 1: Write the proportion equation
   721,480 : 1,142,383 = 1,142,383 : x
2. Step 2: Convert to fraction form
   721,480/1,142,383 = 1,142,383/x
3. Step 3: Cross multiply
   721,480x = 1,142,383 × 1,142,383
4. Step 4: Simplify right side
   721,480x = 1,305,038,918,689
5. Step 5: Solve for x
   x = 1,305,038,918,689/721,480
6. Step 6: Final answer
   x = 1,808,835.89